image overlap message for exposure 3 of trigger 1216079
uvot_overlap.pl vrs. 2010-12-20b fem started at 240218d21h58m43s417721usUT
The observation of trigger 1216079 started 2024-02-18T21:51:09.2
Examining file 1216079_g901_uvot_sky_image.fits
The exposure ID is 729985869
The exposure time is 149.857 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
The uvot region is centered at (245.2168,-15.5947) with a roll angle of 100.3
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (245.2250,-15.6140) with a radius of 3.000 arc min
This is 1.250 arc min from the center of the uvot region
The area of the BAT error circle is 28.27 sq. arc min
The UVOT/BAT overlap is 7.15 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (245.2111,-15.5943) with a radius of 0.078 arc min
This is 0.328 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.019 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 3 of trigger 1216079
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240218d21h58m44s946654usUT
Observation start time is 2024-02-18T21:51:09.2
Examining file 1216079_g901_uvot_sources_image.fits
The exposure ID is 729985869
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 11 detected source(s) for 1216079_g901
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.2164 , -15.5914 with radius 2.38 arc min.
n_usno: 134 n_gsc: 113
Bright star catalog has no entries brighter than 12 mag
Found 11 entries without IDs and 11 entries that are acceptable afterglow candidates for 1216079_g901.
Acceptable entries have no ID, XRT distances < 11.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
Magnitude criteria will be applied later.
BAT distances are from RA=245.2250 (16:20:54.00) DEC=-15.6140 (-15:36:50.4)
XRT distances are from RA=245.2111 (16:20:50.66) DEC=-15.5943 (-15:35:39.5)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.20477 (16:20:49.14) dec=-15.61146 (-15:36:41.3) +/- 0.9" mag=19.51+/-0.20
dist=65.6 REFID=1 major=1.5 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 70.7 arc sec from the BAT position.
This source is near the edge of image (0.929)
Found 8 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 arc sec of a source list entry are considered a match)
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2039 -15.6085 11.2 -1 USNO-B1 20.00 19.05 19.48 *
245.2085 -15.6123 13.4 -1 USNO-B1 20.88 19.55 20.14 *
245.2010 -15.6101 14.2 -1 USNO-B1 21.62 19.30 20.33 *
245.1996 -15.6130 18.7 -1 USNO-B1 20.79 19.41 20.02 *
245.2038 -15.6085 11.2 -1 GSC2.3 18.78 19.97 99.99 *
245.2091 -15.6123 15.4 -1 GSC2.3 19.97 21.15 99.99 *
245.2008 -15.6101 14.6 -1 GSC2.3 19.31 21.80 99.99 *
245.1999 -15.6140 19.2 -1 GSC2.3 19.32 20.74 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.21774 (16:20:52.26) dec=-15.57138 (-15:34:17.0) +/- 0.8" mag=17.70+/-0.15
dist=85.7 REFID=2 major=1.8 minor=0.8 flag=18 (blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 155.5 arc sec from the BAT position.
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2207 -15.5717 10.3 -1 USNO-B1 20.62 99.99 99.99 *
245.2206 -15.5716 10.0 -1 GSC2.3 19.63 20.54 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.21561 (16:20:51.75) dec=-15.57395 (-15:34:26.2) +/- 0.8" mag=18.63+/-0.16
dist=74.9 REFID=3 major=1.8 minor=1.1 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 147.8 arc sec from the BAT position.
Found 4 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2115 -15.5773 18.5 -1 USNO-B1 20.28 18.30 19.18
245.2207 -15.5717 19.5 -1 USNO-B1 20.62 99.99 99.99
245.2114 -15.5774 19.0 -1 GSC2.3 18.41 20.69 99.99
245.2206 -15.5716 19.4 -1 GSC2.3 19.63 20.54 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.8
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.21341 (16:20:51.22) dec=-15.58189 (-15:34:54.8) +/- 0.8" mag=19.02+/-0.17
dist=45.4 REFID=4 major=1.2 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 122.4 arc sec from the BAT position.
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2115 -15.5773 17.8 -1 USNO-B1 20.28 18.30 19.18
245.2114 -15.5774 17.7 -1 GSC2.3 18.41 20.69 99.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.21660 (16:20:51.98) dec=-15.59178 (-15:35:30.4) +/- 0.8" mag=17.73+/-0.15
dist=21.1 REFID=5 major=1.2 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 85.1 arc sec from the BAT position.
Found 8 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2146 -15.5897 10.3 -1 USNO-B1 20.88 19.46 20.09 *
245.2147 -15.5894 10.8 -1 USNO-B1 21.16 19.48 20.22 *
245.2172 -15.5941 8.5 -1 USNO-B1 19.27 18.27 18.72 *
245.2121 -15.5942 18.0 -1 USNO-B1 99.99 19.56 99.99
245.2191 -15.5960 17.6 -1 USNO-B1 21.38 19.33 20.24
245.2146 -15.5894 11.1 -1 GSC2.3 20.11 21.58 99.99 *
245.2171 -15.5941 8.4 -1 GSC2.3 18.45 19.30 99.99 *
245.2190 -15.5960 17.3 -1 GSC2.3 19.64 21.67 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.22058 (16:20:52.94) dec=-15.59235 (-15:35:32.5) +/- 0.8" mag=19.02+/-0.17
dist=33.6 REFID=6 major=1.5 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 79.4 arc sec from the BAT position.
Found 7 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2172 -15.5941 13.4 -1 USNO-B1 19.27 18.27 18.72 *
245.2191 -15.5960 14.2 -1 USNO-B1 21.38 19.33 20.24
245.2223 -15.5901 9.9 -1 USNO-B1 20.23 17.70 18.83 *
245.2171 -15.5941 13.6 -1 GSC2.3 18.45 19.30 99.99
245.2190 -15.5960 14.3 -1 GSC2.3 19.64 21.67 99.99
245.2221 -15.5901 9.6 -1 GSC2.3 17.63 19.99 99.99 *
245.2263 -15.5931 19.9 -1 GSC2.3 19.26 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.21449 (16:20:51.48) dec=-15.59315 (-15:35:35.3) +/- 0.8" mag=19.03+/-0.17
dist=12.5 REFID=7 major=1.3 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 83.4 arc sec from the BAT position.
Found 8 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2146 -15.5897 12.4 -1 USNO-B1 20.88 19.46 20.09 *
245.2147 -15.5894 13.3 -1 USNO-B1 21.16 19.48 20.22 *
245.2172 -15.5941 9.9 -1 USNO-B1 19.27 18.27 18.72 *
245.2121 -15.5942 9.3 -1 USNO-B1 99.99 19.56 99.99 *
245.2191 -15.5960 19.1 -1 USNO-B1 21.38 19.33 20.24
245.2146 -15.5894 13.4 -1 GSC2.3 20.11 21.58 99.99 *
245.2171 -15.5941 9.6 -1 GSC2.3 18.45 19.30 99.99 *
245.2190 -15.5960 18.6 -1 GSC2.3 19.64 21.67 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.22809 (16:20:54.74) dec=-15.59834 (-15:35:54.0) +/- 0.8" mag=18.30+/-0.15
dist=60.7 REFID=8 major=3.7 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 57.4 arc sec from the BAT position.
Found 6 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2264 -15.5931 19.7 -1 USNO-B1 99.99 19.54 99.99
245.2272 -15.5953 11.4 -1 USNO-B1 20.73 99.99 99.99 *
245.2313 -15.5972 11.9 -1 USNO-B1 20.46 19.19 19.75 *
245.2263 -15.5931 19.7 -1 GSC2.3 19.26 99.99 99.99
245.2274 -15.5953 11.2 -1 GSC2.3 20.35 21.42 99.99 *
245.2312 -15.5969 11.8 -1 GSC2.3 19.36 20.52 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.22625 (16:20:54.30) dec=-15.59422 (-15:35:39.2) +/- 0.8" mag=17.78+/-0.15
dist=52.5 REFID=9 major=1.5 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 71.3 arc sec from the BAT position.
Found 5 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2264 -15.5931 3.9 -1 USNO-B1 99.99 19.54 99.99 *
245.2272 -15.5953 5.1 -1 USNO-B1 20.73 99.99 99.99 *
245.2263 -15.5931 3.9 -1 GSC2.3 19.26 99.99 99.99 *
245.2274 -15.5953 5.5 -1 GSC2.3 20.35 21.42 99.99 *
245.2312 -15.5969 19.6 -1 GSC2.3 19.36 20.52 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.22726 (16:20:54.54) dec=-15.59560 (-15:35:44.2) +/- 0.8" mag=18.93+/-0.17
dist=56.2 REFID=10 major=1.2 minor=0.9 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 66.7 arc sec from the BAT position.
Found 6 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2264 -15.5931 9.4 -1 USNO-B1 99.99 19.54 99.99 *
245.2272 -15.5953 1.2 -1 USNO-B1 20.73 99.99 99.99 *
245.2313 -15.5972 15.1 -1 USNO-B1 20.46 19.19 19.75
245.2263 -15.5931 9.5 -1 GSC2.3 19.26 99.99 99.99 *
245.2274 -15.5953 1.1 -1 GSC2.3 20.35 21.42 99.99 *
245.2312 -15.5969 14.4 -1 GSC2.3 19.36 20.52 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1216079_g901 with genie
ra=245.20916 (16:20:50.20) dec=-15.59682 (-15:35:48.6) +/- 0.8" mag=17.70+/-0.15
dist=11.3 REFID=11 major=3.0 minor=0.9 flag=2 (blended)
Found 3 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2121 -15.5942 13.8 -1 USNO-B1 99.99 19.56 99.99
245.2072 -15.6001 13.6 -1 USNO-B1 17.02 15.97 16.44
245.2072 -15.6001 13.7 -1 GSC2.3 16.07 17.17 99.99
*** unacceptable major profile of 3.0
Found 1 entries in star catalog(s) within 20" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.2121 -15.5942 3.3 -1 USNO-B1 99.99 19.56 99.99
The closest star is 3.33" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=245.21449 (16:20:51.48) dec=-15.59315 (-15:35:35.3) +/- 0.8" mag=19.03+/-0.17 dist=12.5 REFID=7 flag=0
Unmatched source ra=245.20916 (16:20:50.20) dec=-15.59682 (-15:35:48.6) +/- 0.8" mag=17.70+/-0.15 dist=11.3 REFID=11 flag=2
There are 1.8448652E+05 counts in the bkg source region of 5580.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 33.062 counts/pixel (5-sig UL in 4" is 19.45 mag) for 1216079_g901
There are 6966.8345 counts in the xrt source region of 198.00000 pixels.
Rate in xrt region with 8 arcsec radius is 35.186 counts/pixel for 1216079_g901
There are 36889.520 counts in the xrt_bkg source region of 1115.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 33.085 counts/pixel (5-sig UL in 4" is 19.45 mag) for 1216079_g901
There are 1 candidate(s) outside XRT error circle with mag < 19.44
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 20.00, XRT distances < 11.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1216079_729985869_240218d21h58m44s946654usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(245.2168,-15.5947,45")
fk5;-circle(245.213412629649,-15.5818902995072,6")
fk5;-circle(245.216600992592,-15.5917834068583,6")
fk5;-circle(245.220584683705,-15.5923478853797,6")
fk5;-circle(245.214494703324,-15.5931470017222,6")
fk5;-circle(245.228090638835,-15.5983377256859,6")
fk5;-circle(245.226248917031,-15.5942226250913,6")
fk5;-circle(245.227260393151,-15.5956045458662,6")
fk5;-circle(245.209162061404,-15.5968222465339,6")
Region file: 1216079_729985869_240218d21h58m44s946654usUT_xrt.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(245.2111,-15.5943,8")
Region file: 1216079_729985869_240218d21h58m44s946654usUT_xrt_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(245.2111,-15.5943,25")
fk5;-circle(245.2111,-15.5943,15")
fk5;-circle(245.216600992592,-15.5917834068583,6")
fk5;-circle(245.214494703324,-15.5931470017222,6")
fk5;-circle(245.209162061404,-15.5968222465339,6")
image paragraph message for exposure 3 of trigger 1216079
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
See notes for more details.
2 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB240218 (Swift/BAT trigger 1216079) at 21:36:07 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 869 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of no aspect solution. Results from the list of sources
generated on-board are not available at this time. No correction has been made
for the expected extinction corresponding to E(B-V) of 0.357.
------- notes for trigger 1216079 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240218d21h58m46s194137usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1216079
-expid=729985869 -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1216079/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 729985869.21958 or about 2024:049:21:51:04 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 11 source(s) in Genie image catalog. 2 source(s) are within 20.0" of the
xrt position. Found 11 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.00 mag. Found 130 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 15% of the Genie image region.
Found 2 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 245.2092 dec= -15.5968 mag=17.70 sep=11.30". The closest Genie
source has ra= 245.2092 dec= -15.5968 mag=17.70 sep=11.30".
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the image data with mag < 19.44 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=245.21341
(16:20:51.22), DEC=-15.58189 (-15:34:54.8) (J2000). It has a mag of 19.02. It
is 122.4" from the BAT position.
****THIS SOURCE IS OUTSIDE XRT ERROR CIRCLE--USE WITH CAUTION***
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 869 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:20:51.22 = 245.21341
DEC(J2000) = -15:34:54.8 = -15.58189
with a 90%-confidence error radius of about 0.80 arc sec. The estimated
magnitude is 19.02 with a 1-sigma error of about 0.17. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.357.
All AG candidates sorted by magnitude for the current finding chart.
(U/V/White SRCLIST mags < 17.5/17.5/18.5 are reliable. Mag > 18.5/18.5/19.5 are
not. Others are uncertain.)
(U/V/White Genie image mags < 18.0/18.0/19.0 are reliable. Mag > 19.0/19.0/20.0
are not. Others are uncertain.)
(Magnitudes followed by * have been corrected for exposure.)
---MET--- -dt- filter ---RA-- ---DEC--- -MAG/Limit Dist(") Source Asp.Corr?
729985869 869 WHITE srclist data are not available.
729985869 869 WHITE image found no candidates.
List afterglow candidates for other finding charts.
729985157 157 ? srclist data are not available.
729985157 157 WHITE image found no candidates.
729985315 315 ? srclist data are not available.
729985315 315 U image found no candidates.
------- Tokens for Quick GCN -------